Help on how to build an emp

Hello I am an Italian boy, and found this site because I was looking for a way to build a emp.
or I tried to build it with the disposable cameras but with poor results, I would know to pass through a scheme to build a

gemz-ita (author) 6 years ago
I am a owner of a slot room and I've been conned by this tool
Kiteman6 years ago
What do you want to do with the emp?

The intended function will affect the design.